If the angle between the plane mirror and the incident ray is 40°, what are the angles of incidence and reflection?

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Solution

∠i + 40° = 90°
⇒∠I = 50° Using law of reflection, we have ∠i = ∠ r = 50°

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If the angle between the plane mirror and the incident ray is 40°, what are the angles of incidence and reflection?

∠i + 40° = 90° ⇒∠I = 50° Using law of reflection, we have ∠i = ∠ r = 50°

∠i + 40° = 90°
⇒∠I = 50° Using law of reflection, we have ∠i = ∠ r = 50°